Cartridge and milling tool

A cartridge to be mounted on a body of a milling tool,

• the cartridge comprising:
• an upper surface, a lower surface, at least a first side surface, a second side surface, a third side surface, and a fourth side surface joined to the upper surface and the lower surface, the fourth side surface being opposite the second side surface and joined to the first side surface and the third side surface;
• and
• a holder part for holding a cutting insert;
• wherein a slit that is connected to the upper surface, the lower surface, and the first side surface, and that divides the cartridge into a main body part having a thickness between the slit and the fourth side surface, a thin material portion having a thickness between the slit and the second side surface smaller than the thickness of the main body part, and a connecting part that connects the main body part and the thin material portion;
• a through hole where a first male screw for retaining the body and the cartridge by screwing into first female threads provided in the body, passes through;
• and
• a screw hole that connects with the slit and formed with second female threads in order for a second male screw to screw into and remain inside the cartridge,
• are formed;
• wherein a relative position of the main body part with regard to the thin material portion when the second male screw that screws into the second female threads is located at a first position in the axial direction of the second female threads, is different from a relative position of the main body part with regard to the thin material portion when the second male screw that screws into the second female threads is located at a second position in the axial direction of the second female threads;
• a head part of the second male screw at the second position contacts the cartridge;
• and
• the second side surface has a hole that connects to the slit formed therein.